Silo network security codes is a keycard in the Fallout: New Vegas add-on Lonesome Road.
Location[]
It can be found in Base Commander Martin Retslaf's desk in an office on the second floor of the Hopeville missile silo.
Transcript[]
|======================|
|MINUTEMAN XI - CONSTANTINE|
|LAUNCH PROTOCOL 10.77 |
|SECURITY CLEARANCE ALPHA |
|======================|
|EAM CLEARANCE: G 5 S S 1 8|
|* * >> USAF DEFCON |
|* * >> EXEC:'BAGMAN' |
|======================|
|AUTH CODE: 0000000000 |
|======================|
|RESPONSE SCENARIO MX-CN91 |
|ICBM RESPONSE/NUCLEAR |
|BASE COMMAND EYES ONLY |
|======================|
Notes[]
The transcript for this note is exactly the same as the transcript for the Fort Constantine launch codes appearing in Fallout 3, and as a result mentions Fort Constantine rather than the Hopeville Ballistic Defense Station.
Behind the scenes[]
Like with the Fort Constantine launch codes from Fallout 3, the authorization code 0000000000 is an allusion to the actual launch codes of ICBMs in the US during the Cold War.[1]